U.S. Department of Homeland Security Secretary Kirstjen M. Nielsen stopped for a brief visit along the U.S. Mexico border where construction for the bollard fence is currently underway along the border in Calexico.

U.S. Department of Homeland Security Secretary Kirstjen M. Nielsen stopped for a brief visit along the U.S. Mexico border where construction for the bollard fence is currently underway along the border in Calexico.